Dr. Robert Cantu, a Boston neurosurgeon and concussion expert who serves as an adviser to the NFL's Head, Neck and Spine Committee, said Thursday he remains unconvinced that sensors can measure head impact with enough accuracy to provide useful data.

A locker-room attendant for the Patriots tried to introduce an unapproved special teams football into last month's AFC Championship Game, four sources familiar with the investigation told Outside The Lines.

The autograph authentication company that has certified items signed by Florida State QB Jameis Winston received them after another firm rejected them because of concerns over their legitimacy, sources told 'Outside the Lines.'

CINCINNATI -- The Cincinnati Bengals were among several NFL road teams checked by federal drug agents Sunday afternoon as they were departing New Orleans, a team spokesman confirmed Monday. ESPN's "Outside the Lines" reported Sunday that agents fr...